VarIsNull function
Prototype: |
function VarIsNull(var Var : variant) : boolean; |
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Description: |
Checks, whether variant is null or not. |
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Syntax: |
variable := VarIsNull(Var); |
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Part |
Description |
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variable |
A variable declared as boolean |
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Var |
A variable declared as variant |
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Return value: |
Returns true if variant is null |
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See also:
CloseFieldMap; Abort; ProcessMessages; Sleep; SoftwareKey; GetTickCount; CreateGUID; HourGlassCursor; DefaultCursor; DisableFieldMapWindow; EnableFieldMapWindow; SetRightTitleBarCaption; RunFieldMapExtension; VarIsNull
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